Dust bag for vacuum cleaners



Sept. 5, 1939. I

N. BERMAN DUST BAG FOR VACUUM CLEANERS Filed Oct. 25; 1938 f-fiil? .5? 08/7/01. Aaf/van Ber/27a? Patented Sept. 5,

UNITED STATES PATENT i s; prima subsequently relates to vacuum cleaner bags oFElCB DUST BAG FOB. VACUUM CLEMIEBS Nathan Bel-man, Atlantic City, Rut.

Application mm 25, ms, sun: No; mm

(01. 1a: sn

Sch-inn.

object the production of n;- the particles already sucked into 01; interfere with those which are. drawn into the This invention has-as an additional object the particles drawn into the bag are not subject toviolent agitation the bag.

Still another-object production of a vacuum cleaner heremabove described 1y easy to manufacture pensive to produce.

after they are deposited within of this invention is the;

bag of the type which will be comparativeand comparatively inexsaid bag. The particle intake end of the bag is,

preferably in the form of in a bottle neck which is cleaner neck.

For the a chamber terminating attached to the vacuum purpose of illustrating my invention, I have shown in the drawing which forms a part hereof, and will now describe, vacuum cleaner bags made in accordance cepts.

with my novel conposition or operative position. A fragment of the vacuum cleaner handl cleaner bag supporting e to which the vacuum spring is attached and a fragment of the vacuum cleaner neck to'which the lower end tached is also of the vacuum cleaner bag is atthe vacuum cleaner have been broken. away to to show otherwise hidd 1 Figure 2 is a section ure 1.

Figure 3 is a section ure 1.

possible. Portions of the vacuum cleaner bag have also been broken away en parts.

on the line 2-2 of Figon the line H of Fig- Figure 4 is an enlarged fragment of that portion of one of the duct side seam.

walls containing the out- Figure 5 is a front view of the lower end of a modification of the Figure 1. Portions of broken away to show 0 vacuum cleaner shown in this fragment have been therwise hidden parts.

stitching 23, 24, 25; and

lines of stitching 25 a the-ad denote simi-v tee'the vacuum cleaner'bag as a unit. This-hagcomprises the intake chamber '2, the particle carrying ducts 3 and 4, the particle receiving pocket 3; andthe duct and pocket communicating chamber 8.

The free edges 1 of the upper end of the duct and pocket communicating chamber 6 are encompassed by the channel like spring closure mem l0 end I2 of said spring I0 is attached to a hook i3 which depends from the vacuum cleaner handie ll.

The lower end ii of the intake chamber 2 has extending therefrom the pin 18 which is received within the bayonet slot ll formed in the collar it which is attached to the vacuum cleaner 20 neck l3.

The particle carrying ducts 3 and l and the particle receiving pocket-5 are formed by placing a U.-shaped strip of tape 20 intermediate each of the walls 2| and 22 of the vacuum cleaner bag I and then by connecting the walls 2i and 22 with the tape 20 by means of the lines of 26. Thisattachment may be made in any manner desired. One'of the methods which I have used is to attach the tape 20 to the wall 2| by means of the lines of stitching 23 and 24. Thereafter, the walls 2| and 22 are joined together along their respective edge by the lines of stitching 21 and 28. Thereafter, the wall 2i and the tape 20 attached thereto are 85 joined to the wall 22 by the lines of stitching 25 and 26 which are placed within the lines of stitching 23 and 24. The lines of stitching 23 and 24 serve as a guide to the operator in making the and .26. This structure results in the formation of a substantially air tight wall or baflle 29 which separates the pocket 5 from the ducts 3 and 4. I v

It is not necessary thatthe wall 29 separating the pocket 5 from'the ducts 3 and 4 be absolutely 45 air tight. I have found that I can secure good resultsby omitting the tape 20.and forming the bafile such as 29 by merely stitching together the bag walls 2| and 22 bylines of stitching such as 23, 24, 25, and 26.

The bag 30 shown in Figure 5 differs from that shown in Figures 1 to 4 inclusive only in the following respects:

(a) The tape 20 has been omitted.

(b) Lines oil-stitching 3i and-32 have been 5 substituted for the lines of stitching 23, 23, 23,

,bottom 38 of the pocket3'l.

The vacuum bag shownin Figure 5 can be made by any one of a number of methods. I made it by forming the body of the bag by joining together the two walls 20 and 2| along their edges in the manner now followed in producing vacuum cleaner bags. Thereafter, I inserted the Y-shaped tube 33 in said bag in the position shown iii-Figure 5. Then by stitching together the walls 20 and 2| by means of the ,U-shaped line of stitches 3| and 32. These stitches anchor the tube 33 in place and form the ducts -3,.36-4, and the pocket 31.

It is to be noted that the bags herein disclosed 7 differ from bags now on the market only in the .fact that the U-shaped line of stitches (elements 23, 23, 25, and 23 in Figures 1 to 4; elements 3| and 32 in Figure 5), join together the walls 2| and 22 in such a manner as to form the intake chamber (element 2 in Figures 1 to 4; element 33 in Figure 5), the particle carrying ducts (elements 3 and l in Figures 1 to 4; elements 35-3 and 364 in Figure 5), the particle receiving pocket (element 5 in Figures 1 to 4; element 31 in Figure ,5), and the duct and pocket communicating chamber (element 8 in Figures 1 to 5). In the embodiments here shown, the intake chamber and the two ducts combine to form a Y-shaped chamber, the particle receiving pocket is posi tioned between the arms of the Y, and the duct and pocket communicating chamber is positioned on top of the Y. i

The vacuum cleaner bags shown in the draw ing function in exactly the same manner. When attached to the vacuum cleaner and when the mechanism which is drawing the particles into the vacuum cleaner is in operation, the particles pass from the neck IQ of the vacuum cleaner into the intake, chamber (element 2 oi. Figures 1 to 4; element 33 in Figure 5) ofthevacuum cleanerbag, whence theylare carried in the direction of the arrows Ai'n'to the particle carrying ducts (elements 3 and [in Figures 1 to 4; elements 35-3 and 36-4 in Figure 5), whence they are carried into the duct and pocket communicating chamber 6, whence they fall in the direction of the arrows B through the mouth 33 'of' the particle receiving pocket (element 5 in Figures 1 to 4; element 3! in Figure 5) into said pocket. Once in the pocket, the dust is removed from the zone of comparative violent air agitation and flow, and therefore rema ns at rest. As a result the dust which is already in the bag does not impede either the flow or entry of new particles into the bag. This obviously increases the eillciency of the vacuum cleaner. When one desires to remove the dust from the bag, it is only necessary to remove the spring closure member and empty the dust through the now open mouth of the bag.

The foregoing d sclosure is to be understood as being by the way of illustration only and not by the wayof limitation, since many changes may be made in'the structures herein disclosed without departing from the spirit of my invention.

Having described my invention, what I claim as new and useful is:

I claim:

1. A vacuum cleaner bag comprising a body member having means formed thereon for attaching said bag to the particle intake member of the vacuum cleaner; a pair of particle carrying ducts formed in said body member, each oi. said ducts. communicating at one of its ends with said particle intake member; a particle receiving pocket formed in said body member intermediate said ducts; and communicating means formed in said body member and connecting said particle receiving pocket with each of said particle carrying ducts.

- 2. A vacuum cleaner bag comprising a body member having means formed thereon for attachingsaid bag to the particle intake member of the vacuum cleaner; a particle intake chamber formed in said body member; a pair of particle carrying ducts formed in said body member, each of said ducts communicating at one of its ends with said particle intake chamber; a particle receiving pocket formed in said body member intermediate said ducts; and a duct and pocket communcating chamber formed in said body member, said duct and pocket communicating chamber being in communication with each of. said particle carrying ducts and with the mouth of said particle receiving pocket,

3. A vacuum cleaner bag comprising a body member having formed therein two spaced apart openings, one of said openings serving asva particle intake opening for said bag and the other of said openings serving as the outlet opening of said bag; means carried by said body member at said particle intake opening for attaching said body member to the neck of the-vacuum cleaner; 9. particle intake chamber formed in said body member and communicating with said particle intake opening; a pair of particle carrying ducts formed in said body member, each of sad ducts communicating at one of its ends with said particle intake chamber; a particle receiving pocket,

formed in said body memberintermediate said ducts; and a duct and pocket communicating chamber formed in said body member, said duct and pocket communicating chamber being in communication with each of said ducts, with the outlet of said particle receiving pocket, and with said mouth opening of said bag'.

4. A vacuum cleaner bag comprising a body member having formed therein a particle intake chamber and a ductand pocket communicating chamber spaced from said particle intake chamber; a pair of spaced apart particle carrying ducts formed in said body member, one ofthe endsoi' each of said ducts communicating with said particle intake chamber and the other oi the ends of each of said ducts communicating'with said duct and pocket communicating chamber; and a particle receiving pocket formed in said body member intermediate said particle, carrying ducts, said particle intake chamber and said duct and pocket communicating chamber withithe mouth of said particle receivingpocket' communicating with said duct and pocket communicating chamber.

5. A vacuum cleaner bag comprising a body member having a Y-shapedchamber formed therein, thestem of said Y-shaped chamber serving as the particle intake chamber of said bag and each of the arms of said Y-shaped chamber serving as a particle carrying duct for said bag; a

particle receiving pocket formed'insaid bag between the arms of said Y-shaped chamber; and

7 'a duct and pocket communicating chamber formed in said bag connecting the upper end of each of said arms of said Y-sbaped chamber with the mouth of said particle receiving pocket.

6. A vacuum cleaner bag comprising a hollow body member; at least one U-shaped line of stitches extending through and uniting the walls of said body member at a point intermediate the edges of said body member, said stitches dividing said body member into a Y-shaped chamber and forming a pocket positioned between the arms of said Y-shaped chamber; and a thirdchamber positioned above said Y-shapcd chamber and said pocket; the stem of said Y-shaped chamber serving as the particle intake chamber 01' said bag, each of the arms of said Y-shaped chamber serving as a particle carrying duct of said has, said pocket serving as the particle receiving chamber of said bag, and said third chamber serving as the communicating .means between each of said particle carrying ducts and said particle receiving pocket.

'I. A vacuum cleaner bag comprising a hollow body member having a particle intake opening a,

formed therein; a Y-shaped tube positioned in said body member with the mouth of the stem of said Y-shaped' tube in communication with said particle intake opening at least one U-shaped line of stitches extending through and connecting the walls of said body member at a point intermediate the edges of said body member with the lower portion of said U falling within, following the outline of, and being contiguous to the inner edges of the arms of said Y-shaped tube, said stitches combining with said Y-shaped tube to v divide said body member into a Y-shaped chamber and to form a pocket positioned between the arms of said Y,- shaped chamber; and a third chamber positioned above said ,Y-shaped chamber and said pocket; the stem of said Y-shaped chamber serving as the particle receiving chamber of the bag, each "of the arms of said'Y-shaped chamber serving as a particle carrying ductof said bag, and said third chamber serving as the communicating means between each of said particle carrying ducts and said particle receivingpocket.

8. A vacuum cleaner bag comprising a hollow body member having two spaced apart openings formed therein, one of said openings serving as the particle intake opening for said bag and the other of said openings serving as the outlet opening oi said bag; means associated with said outlet opening for closing said opening; a U- shaped strip positioned betweenthe walls of said body member at a point intermediate the edges of said body member; at least one line of stitches extending through and connecting said U-shaped strip with the walls of said body member, said stitches combining'with said U-shaped' strip to dividesaid body member into a Y-shaped chamber and to iorm a pocket positioned between the arms of said Y-shaped chamber; and a third chamber positioned above said Y-shaped chamber and said pocket; the stem of said Y-shaped chamber serving as the particle receiving chamber of the bag, each of the arms of said'Y-shaped chamber serving as a particle carrying duct oi said bag, and said third chamber serving as the communicating, means between each of said particle carrying ducts, said particle receiving pocket, and with said outlet opening.

NATHAN IBERMAN. 

